• Devils Postpile Formation

    Devils Postpile

    National Monument California

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  • Devils Postpile National Monument is Open for the Season

    Devils Postpile is open for the 2014 season. The ranger station will be open daily from 9am-5pm. The Devils Postpile campground is open. Ranger walks to Devils Postpile occur daily at 11 am. More »

For Kids


Ranger Led Hikes to Devils Postpile

Fun for any age, ranger-led hikes to the Devils Postpile formation are a great way to learn about the monument. Walks will begin on June 12, 2010 and will be offered daily at 11:00 a.m. through September 6, 2010. After September 6, hikes will be offered on Saturdays and Sundays through September 30. Meet at the Devils Postpile Ranger Station.

Story Hour at the Mammoth Lakes Library

Learn about everything from big black bears to icky insects through stories, crafts, and songs at the Mammoth Lakes Library Story Hour with a Ranger. This program is geared for ages 0-5 and their families. Meet at the Mammoth Lakes Public Library Wednesdays at 10:30 a.m.

Story hour with a ranger:

September 29, 2010

November 3, 2010

Junior Rangers in front of the ranger station
The Devils Postpile Junior Ranger program offers great opportunities for kids to learn about the monument.
NPS Photo

Did You Know?

The tops of the Postpile's columns

Devils Postpile is one of the finest examples of columnar basalt in the world. Approximately 55% of the formation's columns are six-sided. More...